theelfall



(N0 Mddel.) 2 Sheets-Sheet] 1.

w. v. THRELFALL. MACHINE FOR DRAWING AND EVENING SLIVER.

- No. 532,405. Patented Jan. 8, 18 95.

(No Model.) 2 Sheets-Shet- 2.

W. V. THRELPALL. MACHINE FOR DRAWING AND EVENING SLIVER.

No. 532,405. Patented Jan. 8,1895;

. UNITED STATES PATENT O F-E.

WILLIAM V. THRELFALLOF NEWTON, MASSACHUSETTS, ASSIGN OR TO THE PETTEE MACHINE WORKS, OF SAME PLACE.

MACHINE FOR DRAWING 'AND EVENING SLIV ER.

sPEcIFIcATIoN forming part of Letters Patent No. 532,405, dated January 8,1895.

Application filed February 17, 1894. Serial No. 500,511. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM V. THREL- FALL, a citizen of the United States, residing at Newton, in the county of Middlesex and l 5 State of Massachusetts, have invented a new and useful Improvement in Machines for Drawing and Evening Sliver, of which the following is a full, clear, and exact description,

reference being hadto the accompanying 1c drawings forming a part of this specification,

in explaining its nature.

, The invention relates tothat part of the machine for drawing and evening sliver which has to do with the drawing, calendering or r 5 smoothing of the sliver and its delivery to the receiving can. These devices, broadly speaking, include calendering or smoothing rolls which also actas feeding or drawing rolls and a rotary throat for laying the sliver in coils in the can,.and heretofore they have been arranged in a way which has required a .com-

plex and somewhat expensive mechanism, as

well as one which has not been entirely satisfactory in operation. This was caused by .2 5 the supposed necessity for having two sets of rolls, one of which was stationary, and the other of which was either carried 'by the revolving throat or guide and required quite complicated devices to rotate, or was. sepa 0 rated from the drawing'rolls and located between the plates supporting them and the top of the revolving throat.

I have ascertained that the defects of the old organization can be overcome and the cost 5- of the construction cheapened by dispensing with the use of the rolls heretofore carried by the revolving throat or immediately above it, and by using an additional roll in connection with the drawing rolls, so that in the smootho ing, feedingand delivery of the sliver to the can, I use three non-traveling rolls instead of four located over a rotary throat without an rolls.

The invention relates to other features 5. which will be hereinafter fully described, the

samerelating to a removable funnel and adjustable stops for regulating the extent of movement of the lever operated by the sliver in its passage through the funnel.

elevation of the part of the machine having the features of my invention. Fig.2 is a view in vertical central section through the same. Fig. 3 is a vi'ew in plan of my improvement, and Fig. at is a view in side elevation showing the upper drawing roll and the guide roll as removedfrom the lower drawing roll. The mechanism for drawing'the sliver is, with the exception of its regulating lever, not shown. 6o

. A represents the upper part ,of the can which receives the sliver. It is rotated in the usual way. Above the can is the frame B which supports or carries the various devices constituting the present invention. It is preferably made in the upper part b and lower part b which are separable from each other, and the upper part has brackets 19 b for supporting thev drawing, calendering or smoothing andfeeding rolls 0, C, 0 7c The roll (J is carried by the brackets 19 which are in the form of pillow blocks with removable caps. The rollsC O are represented as carried by a two-armed bracket which is hinged at b to the bracket b so that both rolls can be swung upward and inward from the roll 0, entirely clearing it and exposing it so that it may readily be examined, and, if necessary, removed.

The bracket, it Will be understood, has two arms parallel with each other and the bearings for the roll 0' are at b and the caps b are removable. The roll 0 has the open bearings b by which it maybe removed from the bracket without removing caps or disturbing theposition of the bracket.

The rolls 0 O are positively driven, that is, on each roll shaft there is a gear which meshes with the gear of the othershaft. The roll 0 is driven by friction of the roll 0 thereon. 90, The shaft of the roll 0 is driven in the ordinary way and the rolls are located in relation to each other as shown in Figs. 1 and 2,the j roll 0 being when in operative position substantially upon the sameplane as that of the 5 roll 0, and the roll 0' being a little removed forward from a position directly over the center of the roll 0. This enables the rolls to draw and smooth the sliver and at the same 50 In the drawings, Figure 1 is a view in side time to turn its direction and feed it downward through the throat, the rolls 0, O acting as the drawing and smoothing rolls and the rolls 0 C acting as the smoothing rolls and as directing and feeding rolls in addition.

The funnel D is likethat ordinarily used in this class of machine and performs the same function. Instead, however, of being made integral with the lever d, as in the old type of machine, it is made separate from the lever and detachable or removable therefrom, the lever having at its upper end an enlargement d. in which there is a hole d and the funnel D is made with the circular section d to fit the hole and the shoulder (Z and it is held in place in the hole by the looking screw d This construction is advantageous in that it is necessary to change the funnel from time to time to vary the size of the feed hole cl through which the sliver passes, it being understood that this is a very delicate part of the machine, as the sliver as it is drawn through this hole must serve to actuate the lever d in the operation of evening the sliver, and the hole, therefore, must not be too large or too small for the sliverbeing worked upon, and the hole must also be close to the nipping or drawing points or sections of the rolls 0, 0. As the staple of the cotton varies inlength, it is possible to vary the distance of this hole from the meeting sections of the rolls a limited distance. I'Ieretofore, there has been, so far as I am aware, no means for readily changing this position, the position of the lever and funnel being established by a fixed stop which had to be filed or added to in order to change the distance inward 01' outward. I accomplish this change in position by means of adjustable stops 01' d and especially by the stop 01 They are each rep resented in the form of headed screws, one screwing in the post d and the other in the post (1 and each has acheck nut for holding the stop in its adjusted position. It is apparent that these stops d, d? can be adjusted so as to limit the movements of the lever cl in either direction as it vibrates under the passage of the sliver through the funnel or trumpet D.

The sliver is passed from the rolls 0 0 through the throat E to the can. This throat extends diagonally in the throat forming block or piece 6 from its upper opening or inlet e' to the outlete The inlet is centrally located in relation to the two rolls 0 C The outlet is sufiioiently out of line with the inlet to cause the sliver to be laid in the can in a coil. The block or part 6 in which the throat is, is integral with or carried by the rotary plate 6 which has a bearing at e upon the section b of the frame, the said section having a large circular hole 2 to receive a portion of the plate e There is attached to the outer edge of the plate or formed thereon a gear a with which a rotating pinion engages, and the plate and throat are constantly turned and at the desired speed. The pinion is rotated in the manner common to the old type of device. t

The block e may have at its upper end a bearing at e", there being a bearing or cover plate e fastened to the part B and having a thin or narrow edge about the opening which receives the upper part of the block.

The operation of the device is as follows: The sliver passes through the evening rolls and the funnel to the drawing and smoothing rolls 0 G, and the action of the evening rolls or devices is automatically controlled as in the old type of machine through the funnel and lever d. The rolls 0 0 turn the sliver and serve to ad Vance it or feed it downward through the throat E, and that, taken in connection with the drawing action upon the sliver caused by the rotation of the can serves to feed the sliver through the throat.

and to lay it in the can in a suitable coil and without the necessity of auxiliary feeding devices.

The cover plate e is cut away upon its under side to permit the block e to be moved downward therefrom with the part b which is hinged at X to the part b. The roll 0 is supported so that when in operative position it bears against the roll 0.

I do not confine myself to the especial means for supporting the rolls 0 C in relation to the roll 0 herein specified, but may use any mechanical equivalent for the devices herein described for supporting, them in operative relation thereto upon the section b.

The caps for the boxes of the roll 0' are represented as connected by a curved connection or platef, the under surface of which may be lined with flannel or other similar material and form a cleaning or clearing device for the roll 0'.

Having thusfully described my invention, I claim and desire to secure by Letters Patent of the United States 1. In a machine of the character specified,

thecombination with a positively driven drawing roll mounted in fixed bearings on the ma chine frame, of a swingingv bracket hinged to the main frame, a second positively driven drawing roll mounted in said swinging bracket, and a guide roll also journaled in said swinging bracket, substantially as described.

2. In a machine of the character specified the combination with a positively driven drawing roll mounted in fixed bearings on the frame, of a second positively driven drawing roll mounted in a swinging bracket above and slightly forward of said first named drawing roll and co-operating therewith, a guiding roll also mounted in said swinging bracket, and a movable funnel in proximity to said drawing rolls.

3. In a machine of the class specified, the combination with the positively driven drawing roll 0, of the positively driven drawing roll 0 mounted in a swinging bracket hinged 7 also journaled in said bracket to the main frame, and the guide roll 0 y and bearing against the drawing roll 0, substantially as described.

4. In a machine of the class specified, the combination with the positively driven drawing rolls 0 0, one of which is mounted in fixed bearings on the frame of the machine and the other of which is journaled in 'a swinging bracket provided with open bearings, of the guide roll C mounted in said open bearings inthe said swinging bracket, substantially as described.

5. In a machine of the class specified, the

combination with the positively driven draw ing rolls 0, O", the former (O) of said rolls being mounted in fixed bearings-0n the main frame, of a swinging bracket in which the latter (0) of said rolls is mounted, the lever cl pivoted on the main frame and provided at its upper end with a circular aperture, the funnel D having the shoulder d mounted in said aperture, the holding screw 01 and the adjustable stops d (i on either side of the said lever, substantially as described.

WILLIAM v. THRELFALL.

In presence of- F. F. RAYMOND, 2d, J. M. DOLAN. 

